BOC Edwards EO2K, Инструкция по эксплуатации

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EO2K, EO4K and EO6K Diffusion Pumps
IN
STALLATION
PAGE
29
Issue G 29 Aug 06
3.9.3 Filling procedure
When you fill the pump:
• Use the best fluid for your application.
• When you first receive the pump, its internal surfaces will be coated with a thin film of Santovac 5
fluid. This fluid is used to test the pump before dispatch. You must clean the pump before you fill
it with a fluid other than Santovac 5.
• You can refill the pump with the fluid which you last used in the pump. If you want to use a different
fluid, you must clean the pump thoroughly before you refill the pump.
Use the following procedure to fill the pump with fluid:
1. Check that the fluid drain-plug is tightened securely.
2. Pour the required amount of fluid (see Section 2.4) into a clean container.
3. Use a funnel to fill the pump with fluid through the backing spout. Alternatively, pour the fluid
charge in through the pump-inlet, through the baffle and down the inner wall of the pump; take care
not to pour fluid onto the top-cap.
4. Allow the fluid to fully drain into the boiler before you operate the pump.
Vapour
pump fluid
BOC
Edwards
product
(other fluid)
Auto-
ignition
temp.
o
C
Break-
down
temp.
o
C
Thermal
breakdown
products
Type of danger Possible
injury
Silicone fluids
(methyl
phenyl
siloxanes) DC702,
DC704EU,
DC705
≈
500 400 Decomposed
hydrocarbons
and silicon
based species Negligible Negligible
Alkyl
naphthalene
fluid Edwards L9 370
≈
300 Naphthalene
and
decomposed
hydrocarbons Naphthalene is
poisonous in large
quantities by
ingestion and skin
contact Minor (first aid
may be
required)
Polyphenyl
ether
(5-Ring) Santovac 5 590
≈
480 (in
helium)
Phenol,
benzene and
phenolic
materials Phenolic materials
are poisonous and
caustic by ingestion
and skin contact Major (a lost
time accident
can occur)
Paraffinic
fluids &
ester fluids None
≥
305 < 300
(in air)
Decomposed
hydrocarbons Fire (Note: AP201
has a low auto-
ignition
temperature) Major (a lost
time accident
can occur)
Perfluoro-
polyether None
(Fomblin
18/8)
None > 260 Decomposed
fluorocarbons
including
hydrofluoric
acid Highly aggressive
materials.
Poisonous and
caustic by inhalation
and skin contact Potentially
fatal
Table 13 – Vapour pump fluid thermal breakdown
WARNING
Ensure that the fluid-charge in the pump is correct. If there is insufficient fluid in the pump,
the pump may overheat during operation and be damaged, and the pump fluid may
undergo thermal breakdown.